[FIX] remove copybuttons in code-out

docs/_static/custom.css

@@ -1,5 +1,5 @@
 div.code-out > div.highlight > pre {
-    background-color: #d3effd !important; 
+    background-color: #dbf4fa !important; 
 }
 .green-bold {
     color: green; 

docs/conf.py

@@ -55,6 +55,8 @@ texinfo_documents = [
     ("index", slug, project, slug, project, "Miscellaneous"),
 ]
 
+copybutton_selector = "div:not(.code-out) > div.highlight > pre"
+
 
 def remove_noqa(app: Sphinx, what: str, name: str, obj, options, lines):
     new_lines = []